Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/4440#discussion_r130587841
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/registration/RegisteredRpcConnection.java
---
@@ -88,24 +86,17 @@ public void start() {
pendingRegistration = checkNotNull(generateRegistration());
pendingRegistration.startRegistration();
- Future<Tuple2<Gateway, Success>> future =
pendingRegistration.getFuture();
-
- Future<Void> registrationSuccessFuture =
future.thenAcceptAsync(new AcceptFunction<Tuple2<Gateway, Success>>() {
- @Override
- public void accept(Tuple2<Gateway, Success> result) {
- targetGateway = result.f0;
- onRegistrationSuccess(result.f1);
- }
- }, executor);
-
- // this future should only ever fail if there is a bug, not if
the registration is declined
- registrationSuccessFuture.exceptionallyAsync(new
ApplyFunction<Throwable, Void>() {
- @Override
- public Void apply(Throwable failure) {
- onRegistrationFailure(failure);
- return null;
- }
- }, executor);
+ CompletableFuture<Tuple2<Gateway, Success>> future =
pendingRegistration.getFuture();
+
+ future.whenCompleteAsync(
+ (Tuple2<Gateway, Success> result, Throwable failure) ->
{
+ if (failure != null) {
--- End diff --
I somehow like the failure case treating being first. It something like a
termination condition for recursion, you also start with it instead of the
recursion step.
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